Welding - Welding Metals MCQs : This section focuses on the "Welding - Welding Metals". These Multiple Choice Questions (MCQs) should be practiced to improve the Welding - Welding Metals skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Carbon steels can be fusion welded.
A. TRUE
B. FALSE
Question 2
High alloys steels are preheated up to what temperature?
A. 350°C
B. 400°C
C. 450°C
D. 500°C
Question 3
Low carbon steels need not be preheated before welding.
A. TRUE
B. FALSE
Question 4
Stainless steels are annealed at what temperature?
A. 650°C – 700°C
B. 700°C – 750°C
C. 750°C – 800°C
D. 800°C – 850°C
Question 5
Up to what percent of carbon content in steel, it is not required to preheat it?
A. 0.25% – 0.3%
B. 0.3% – 0.35%
C. 0.35% – 0.4%
D. 0.4% – 0.45%
Question 6
What is the temperature needed for preheating in cast irons?
A. 550°C
B. 600°C
C. 650°C
D. 700°C
Question 7
Which among the following methods is best suited for stainless steels?
A. Electric butt welding
B. Seam welding
C. Flux coated arc welding
D. Oxy-hydrogen welding
Question 8
Which of the following is not a material used for making an electrode in metal arc welding, for treating stainless steels?
A. Niobium
B. Columbium
C. Titanium
D. Potassium
Question 9
Which of the following material is not used in alloy steels?
A. Molybdenum
B. Nickel
C. Chromium
D. Sodium
Question 10
Which of the following methods cannot be used for welding carbon steel?
A. Arc welding
B. Gas welding
C. Ultrasonic welding
D. Forge welding